Used as a labeled compound in research and analytical chemistry, particularly in studies involving the tracing and quantification of anthraquinone derivatives. It serves as an internal standard in mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy to ensure accurate measurements. Applied in the development of dyes, pigments, and pharmaceuticals, where isotopic labeling helps in understanding metabolic pathways and degradation processes. Also utilized in environmental studies to track the behavior and transformation of anthraquinone-based compounds in ecosystems.